Leopold Talirz

Also, I see [this upvoted answer](https://stackoverflow.com/a/59415658/1069467) which makes me believe that the docker cli at least used to be available in `ubuntu-latest` (maybe it changed...?)

When this PR is ready for review, please ping @sphuber I can have a look at the docs when it's ready

thanks for the report @m-a-saleh Indeed, over time there've been several significant documentation overhauls, and some parts of the doc are missing or in different places. For docs that have...

Just mentioning that there are many Github actions test setups in plugins that set the `AIIDA_TEST_BACKEND` variable, either to `django` or to `sqlalchemy`. That `django` no longer works makes sense,...

Just mentioning that in AiiDA 2, `Node.is_valid_cache` is now a setter as well https://github.com/aiidateam/aiida-core/pull/5207

Thanks @chrisjsewell for figuring this out! Do we know which tasks are the culprit here, i.e. which tasks are preventing automatic garbage collection without the `sleep`? Depending on the tasks,...

> Hmm, I think that's what Python does anyway The problem here is likely with cyclic references, which aren't garbage-collected automatically

Sorry, you are right. I even once looked into the [default parameters](https://stackoverflow.com/a/65995450/1069467) for this... Of course, it can still be useful to run garbage collection after a process is completed...

@chrisjsewell Is there any reason to wait more for this or is this switch up for grabs?

@chrisjsewell will take care of this once sphinx-book-theme has further consolidated, see https://github.com/aiidateam/aiida-core/pull/5368